QuestionAnswerer load_kb fails on compact JSON file

[davidmfrey]

The following situation demonstrates the problem

Consider a file data.json
[{"id":"1","name":"data1"},{"id":"2","name":"data2"}]

Loading this file with QuestionAnswerer.load_kb() will fail because the JSON is compact. I would suggest adding an option to load a knowledge base by passing in an iterator to allow the user of the library to load the data in whatever method works best for them. The JSON file loader should also handle compact JSON format.